Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2024-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
9,600,000
GBP
|
5,000,000
GBP
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
21,200,000
GBP
|
23 .0
GBP
|
— |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract] | |||
| Investments in associates reported in separate financial statements |
600,000
GBP
|
1. 5
GBP
|
— |
| Trade and other non-current receivables [abstract] | |||
| Trade and other non-current receivables |
—
GBP
|
1. 4
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
20,800,000
GBP
|
20,400,000
GBP
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
1 8 7. 6
GBP
|
221,400,000
GBP
|
1 7 7. 7
GBP
|
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
—
GBP
|
2,200,000
GBP
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
101,900,000
GBP
|
54,700,000
GBP
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
2 7. 8
GBP
|
54,300,000
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
300,000
GBP
|
0. 4
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
19 0.2
GBP
|
84 .9
GBP
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Reserve of exchange differences on translation |
5. 3
GBP
|
14 . 2
GBP
|
— |
| Miscellaneous equity [abstract] | |||
| Reserve of share-based payments |
20,600,000
GBP
|
24. 0
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
358 .0
GBP
|
373 . 2
GBP
|
— |
| Liabilities |
141. 5
GBP
|
126 . 4
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
3 0 7. 4
GBP
|
311. 5
GBP
|
— |
| Current liabilities |
1 3 5 .1
GBP
|
1 1 7. 7
GBP
|
— |
| Assets less current liabilities [abstract] |